Question

我有两个模型，一个与外键相关：

Foo foo; // a foo object
foo.setFooFunction(o); // pass it the boost::python::object

在class Service(models.Model): name = models.CharField(max_length=100) def __str__(self): return self.name class ServiceFile(models.Model): service_file = models.CharField(max_length=100) service = models.ForeignKey(Service)内，我想抓取views.py内容及其多个Service值（以便将其与上下文一起传递给模板）。我怎么能这样做？

Answer 1

service = Service.objects.get(id=111) # service whose id is 111 for example
serv_files = ServiceFile.objects.filter(service=service)

Answer 2

您只需在上下文中获取Service，即可通过您可以直接在模板中创建的查询来访问ServiceFile。例如，您的上下文包含all_services Service.objects.all()。然后，在您的模板中：

// iterate over each service
{% for service in all_services %}
    // _set.all gets all ServiceFile objects that have a
    // specific service as foreign key.
    {% for servicefile in service.servicefile_set.all %}
       // You can access properties of each of these servicefiles.
       {{ servicefile.service_file }}

Django向外键模型添加多个值

2 个答案: